LG TV Repair: Common Faults and Solutions.
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Results: 4834
Results: 4834
LG Repair Guide: Common Issues and Fixes
| Brand | Model | Fault | Detailed Problem | Solution | By |
|---|---|---|---|---|---|
| LG | 21FJ6BR | Arm and disarm lights up stand by, but when you press the keys or control the LED goes off and +b drops | R842=27k open | Replaced and solved the problem | Antonio Carlos (Eletrônica Renascer)Boa Vista do Gurupi-MA |
| LG | 29FX5CL | Cushion effect and excess width | Shorted th301 | Nunes64 | |
| LG | 14SB1RB | Vertical closed | Resistor r301 15k | 3R | |
| LG | 21FU4RL L3 | Does not tune channels | 33v track broken and r114=30k open | Redo the trail, replace the r114 and just joy | Antonio Carlos (Eletrônica Renascer)Boa Vista do Gurupi-MA |
| LG | 42PQ30R | Turn on and off | Y-sus queimada | I located the leaky IGBT Q16, after making sure that tsound were no burned components and no open resistors, I managed to find the original IGBT 4086 on the open market, (the original IGBT, looking at the piece from the front, has a little hole, inside it tsound is have a letter), I assembled everything and everything worked. | Maurilio |
| LG | RZ-32LZ50 ML-041A | Defective, blurred, dragging image. | Checking all electrolytic capacitors (through hole and SMD) for high ESR values | Replace all capacitors with values that were too high despite appearing physically fine. pay special attention to c604, c503, c566, c565, c815, c957, c958, c1113, c1115 | emoniz |
| LG | 39LN5400 | Off, perfect sound | Replace the complete back light | Tsound is no point in reconditioning the bars, as it will come back under warranty and you will have to pay for it. | Eletro Fast Info audio/video e celular |
| LG | L1511S | Lamps turn on and off (top lamp turning on halfway. | Replace q106 e q107(d1616), c104(18j100), c100(330uf,35v) | Replace q106 e q107(d1616), c104(18j100), c100(330μF,35v) | BRUHHNO |
| LG | 21FU6TL CW81B | Replace r844 | R844 4k7 dando 70k | Replace r844 | CLAUDIO_TECNICO_SURUBIM_PE |
| LG | 32LN540B | League has sound, but no image, dark image | Before finding out if it was the LEDs that were defective, first measuring the voltage on the pin that powers the LEDs was very low at 50.8v, measuring the power supply at 3.5v everything was ok, measuring the 24v and 12v voltages it was ov, the problem was a lack of Attention, I found photocoupler ic102 - el817b leaking, ic202 - nr891d short, replace with the original and d206 - smab36 with the original, remove the defective board | I turned on the TV, the LEDs came on and the ATV was working, everything was ok, defect resolved | Andre |
| LG | CP29K30 | TV with LED on, you try to turn it on and then it turns off. | Ic555 and ic853 both with cold soldering. | Armando de Olímpia | |
| LG | 21FU6TL | This TV arrived at the workshop with the ic301=la78141 broken, I changed it and the TV turned on but with the vertical half closed and with a line in the center of the screen, the image was bent. | Fr301 open (note. the ic 301 power supply is 26v and it was 15v only after a long time banging my head I decided to test the fr301 and the damn thing changed | I replaced and ran to another one | Antonio Carlos (Eletrônica Renascer)Boa Vista do Gurupi-MA |
| LG | 42LM6400 | No image on screen | Capacitor: c7757 shorted | Replace for another | lucinaldo |
| LG | 21FU6TL | This TV arrived at the workshop with the ic301=la78141 broken, I changed it and the TV turned on but with the vertical half closed and with a line in the center of the screen, the image was bent. | Fr301 | Antonio Carlos (Eletrônica Renascer) | |
| LG | 39LB5600 | Blinking backlight LEDs. | L801 | e.vargas | |
| LG | 42LG30R | TV would turn on after a few minutes on HDMI 2 it would turn off and on 1 it would have no sound but with image but controls no longer worked | Different capacitors change without testing, c1110, c1118 and c1128 | Replace capacitors on the main board, replace without testing, c1110, c1118 and c1128 with electrolytics or if you have the same ones | ES informatica e eletronica |
| LG | 42PJ250 . | Screen almost blacked out with dark spots in the corner of the screen caused by r729 open on the y-sus 2.2 homs board. I also replaced the blue ceramic c765, tip from friends sound on the forum. we will help | Causes r729 of 2.2 hms and c765 of 1k for 1kv. na y-sus. | Replace r729 e c765 na y-sus. | <small>This email address is being protected from spambots. You need JavaScript enabled to view it.</small> |
| LG | 42PG20R | No image, no LED on the ctrl controller board lights up | Changing the ctt board (control board) | Março Joveta | |
| LG | 21FJ6RB | Black bar at the bottom + or- three fingers | R-305 amended | Replace it for another like it | ELETRÔNICA CAVALCANTE |
| LG | 21FJ6RB | When plugging it into the socket, the LED was on but it didn't turn on either with the control or the keyboard | C-11 - c12 and the crystal both next to the micro | Replace it for another like it | ELETRÔNICA CAVALCANTE |